init

_static/admin/js/core.js

@@ -0,0 +1,170 @@
+// Core JavaScript helper functions
+'use strict';
+
+// quickElement(tagType, parentReference [, textInChildNode, attribute, attributeValue ...]);
+function quickElement() {
+    const obj = document.createElement(arguments[0]);
+    if (arguments[2]) {
+        const textNode = document.createTextNode(arguments[2]);
+        obj.appendChild(textNode);
+    }
+    const len = arguments.length;
+    for (let i = 3; i < len; i += 2) {
+        obj.setAttribute(arguments[i], arguments[i + 1]);
+    }
+    arguments[1].appendChild(obj);
+    return obj;
+}
+
+// "a" is reference to an object
+function removeChildren(a) {
+    while (a.hasChildNodes()) {
+        a.removeChild(a.lastChild);
+    }
+}
+
+// ----------------------------------------------------------------------------
+// Find-position functions by PPK
+// See https://www.quirksmode.org/js/findpos.html
+// ----------------------------------------------------------------------------
+function findPosX(obj) {
+    let curleft = 0;
+    if (obj.offsetParent) {
+        while (obj.offsetParent) {
+            curleft += obj.offsetLeft - obj.scrollLeft;
+            obj = obj.offsetParent;
+        }
+    } else if (obj.x) {
+        curleft += obj.x;
+    }
+    return curleft;
+}
+
+function findPosY(obj) {
+    let curtop = 0;
+    if (obj.offsetParent) {
+        while (obj.offsetParent) {
+            curtop += obj.offsetTop - obj.scrollTop;
+            obj = obj.offsetParent;
+        }
+    } else if (obj.y) {
+        curtop += obj.y;
+    }
+    return curtop;
+}
+
+//-----------------------------------------------------------------------------
+// Date object extensions
+// ----------------------------------------------------------------------------
+{
+    Date.prototype.getTwelveHours = function() {
+        return this.getHours() % 12 || 12;
+    };
+
+    Date.prototype.getTwoDigitMonth = function() {
+        return (this.getMonth() < 9) ? '0' + (this.getMonth() + 1) : (this.getMonth() + 1);
+    };
+
+    Date.prototype.getTwoDigitDate = function() {
+        return (this.getDate() < 10) ? '0' + this.getDate() : this.getDate();
+    };
+
+    Date.prototype.getTwoDigitTwelveHour = function() {
+        return (this.getTwelveHours() < 10) ? '0' + this.getTwelveHours() : this.getTwelveHours();
+    };
+
+    Date.prototype.getTwoDigitHour = function() {
+        return (this.getHours() < 10) ? '0' + this.getHours() : this.getHours();
+    };
+
+    Date.prototype.getTwoDigitMinute = function() {
+        return (this.getMinutes() < 10) ? '0' + this.getMinutes() : this.getMinutes();
+    };
+
+    Date.prototype.getTwoDigitSecond = function() {
+        return (this.getSeconds() < 10) ? '0' + this.getSeconds() : this.getSeconds();
+    };
+
+    Date.prototype.getAbbrevMonthName = function() {
+        return typeof window.CalendarNamespace === "undefined"
+            ? this.getTwoDigitMonth()
+            : window.CalendarNamespace.monthsOfYearAbbrev[this.getMonth()];
+    };
+
+    Date.prototype.getFullMonthName = function() {
+        return typeof window.CalendarNamespace === "undefined"
+            ? this.getTwoDigitMonth()
+            : window.CalendarNamespace.monthsOfYear[this.getMonth()];
+    };
+
+    Date.prototype.strftime = function(format) {
+        const fields = {
+            b: this.getAbbrevMonthName(),
+            B: this.getFullMonthName(),
+            c: this.toString(),
+            d: this.getTwoDigitDate(),
+            H: this.getTwoDigitHour(),
+            I: this.getTwoDigitTwelveHour(),
+            m: this.getTwoDigitMonth(),
+            M: this.getTwoDigitMinute(),
+            p: (this.getHours() >= 12) ? 'PM' : 'AM',
+            S: this.getTwoDigitSecond(),
+            w: '0' + this.getDay(),
+            x: this.toLocaleDateString(),
+            X: this.toLocaleTimeString(),
+            y: ('' + this.getFullYear()).substr(2, 4),
+            Y: '' + this.getFullYear(),
+            '%': '%'
+        };
+        let result = '', i = 0;
+        while (i < format.length) {
+            if (format.charAt(i) === '%') {
+                result += fields[format.charAt(i + 1)];
+                ++i;
+            }
+            else {
+                result += format.charAt(i);
+            }
+            ++i;
+        }
+        return result;
+    };
+
+    // ----------------------------------------------------------------------------
+    // String object extensions
+    // ----------------------------------------------------------------------------
+    String.prototype.strptime = function(format) {
+        const split_format = format.split(/[.\-/]/);
+        const date = this.split(/[.\-/]/);
+        let i = 0;
+        let day, month, year;
+        while (i < split_format.length) {
+            switch (split_format[i]) {
+            case "%d":
+                day = date[i];
+                break;
+            case "%m":
+                month = date[i] - 1;
+                break;
+            case "%Y":
+                year = date[i];
+                break;
+            case "%y":
+                // A %y value in the range of [00, 68] is in the current
+                // century, while [69, 99] is in the previous century,
+                // according to the Open Group Specification.
+                if (parseInt(date[i], 10) >= 69) {
+                    year = date[i];
+                } else {
+                    year = (new Date(Date.UTC(date[i], 0))).getUTCFullYear() + 100;
+                }
+                break;
+            }
+            ++i;
+        }
+        // Create Date object from UTC since the parsed value is supposed to be
+        // in UTC, not local time. Also, the calendar uses UTC functions for
+        // date extraction.
+        return new Date(Date.UTC(year, month, day));
+    };
+}